Gotham Eta 1080

[Affnan]

Pick up this from the flea market for 7 quid, it not working.

 

 

Its a bubble back, held by 4 grub screws, some  of the screw are missing and that one on the left was something else.

 

 

Take some doing to get the case split.

 

 

I was not sure how to get the stem out so I carefully remove the dial to see if there any screws,to turn or lever to press.

 

 

But there is none, under the dial... what I can see is the Setting Lever Spring broken, that one reason why this watch didn't work.

 

 

Finally I brave myself to pull the crown, well it detached.. so its this type of fitting.

 

 

Here the movement.. ETA 1080.. the Setting Lever Spring available from Cousin, and I'll strip this movement to check what else needed. For sure I need those grub screws to hold the case, but that not part of ETA but Gotham..

 

 

Will update, as I strip it further... and will source the parts once I know what else needs replacing. The main spring may not be in a good shape.. :(

 

Affnan

Edited May 17, 2015 by Affnan

[anilv]

Hi Affnan, these screws look similar to the ones used on Croton watches... I've seen some NOS on eBay.

Anil

[Affnan]

Will check it out, I'll try cousins since I have quite a number of item to order.

[Lawson]

 

 

I was not sure how to get the stem out so I carefully remove the dial to see if there any screws,to turn or lever to press.

 

Hi Affnan,

 

To release the stem, loosen the screw circled about 1/2 to 3/4 of a turn.  You should then be able to extract the stem.

 

[Affnan]

Hi Lawson

 

Thanks for the tips, manage to strip all the parts. I was unsure how to get the movement out since the case back prevent me from getting to that screw. Until I pull off the crown then it is as what you suggest.

 

Update

 

The main spring broke need replacement, so only 2 items needed the setting lever spring and the main spring. Not too difficult to get for this movement.

 

 

Strip clean will assemble after I got the spare.

 

 

 

BTW, what cleaning fluid can I use with ultrasonic cleaner. Currently I use alcohol, but not on all parts.

 

Affnan

Edited May 17, 2015 by Affnan

[Affnan]

Need help in where this collet located in this movement. It drop before I can ident its location.

 

 

I think it's item 736 of the part list.

 

 

 

[Affnan]

Few of the wheels, cleaned. That ratchet wheel has sign of rust, any suggestion on how to get it off. Will fine grit sand paper damaged it ?

 

[Legarm]

Need help in where this collet located in this movement. It drop before I can ident its location.

 

Gotham 17.jpg

 

I think it's item 736 of the part list.

 

Gotham 18.jpg

 

It is probably the Crown Wheel Ring. Normally 422.........

[Affnan]

It is probably the Crown Wheel Ring. Normally 422.........

 

Thanks Legarm, it fit   :woohoo-jumping-smiley-emoticon:

[Gotwatch]

Affnan, for the rust on the winding wheel, I have found this fiberglass scratch brush useful. You can use it to brush away the rust brushing in the direction of the grain on the wheel.

 

https://www.cousinsuk.com/product/scratch-brush-bergeon?code=B0225

[Affnan]

Gotwatch, thanks. I happen to be ordering few parts from them later tiday. It will reduce my postage charges.

[bobm12]

I've been away and now I see this excellent thread. Good job Affnan! Keep it up.

 

As an aside, rust is inhibited with tea. Just put the parts in tea, then you can use a fiberglass rust bruch. In the case of the winding wheel you can sand the surface with the grain using ever fines sand paper until the rust is gone...but careful since when it is pitted I would order a new one...if the price is right.

 

I hope this helps,

 

Cheers,

 

Bob

[Affnan]

As an aside, rust is inhibited with tea. Just put the parts in tea, then you can use a fiberglass rust bruch. In the case of the winding wheel you can sand the surface with the grain using ever fines sand paper until the rust is gone...but careful since when it is pitted I would order a new one...if the price is right.

 

Thanks Bob, this a new one to me, previously I use coke for bike and engine parts to stop rust. I must try tea for watches now, wonder what would happen if I put tea in the ultrasonic cleaner. Underside of the winding wheel is good, no rust. It is good to replace if the price is right. However I'm in a bit of a pinch right now, see my Avatar I'm the certified instructor on that plane and the missing 370, we are really in bad shape. This watch repair exercise has help me to calm my nerve due to heavy stress.

 

Most of the watches I'm doing now are from the flea market where I can pick it up for less than 10 quid, it a safe way to practice but I will make sure it's having a Swiss or a least a good Japanese movement inside.

 

Affnan

Edited May 19, 2015 by Affnan

[Gary]

Great work! Anxious to see the results?

Thank you for sharing!